This includes prewired electrics, including 10 Amp 12 volt Thermostat, Safety shielded Spiral 12 volt Heater and Battery Clips, Colour Strip Digital Thermometer, and Instructions. They included elementary Hatching Instructions and Sketch Plans to make an incubator cabinet from plywood, shielded with panels of foamed polystyrene (F-PST).

 

However, we are aware of foamed PST plastic boxes (fish boxes/ freezer boxes, etc) being converted into much better still air incubators than the suggested plywood. Power consumption is controlled by 3 main factors: Wall thickness and thermal efficiency; Surface Area of Walls; Ambient temperature, and any fresh air through put.

 

A 20mm thick “Vegetable Box” of F-PST plastic measured 600mm Long x 500mm Wide x 400mm High, with both an inner and an outer skin of hard PVC, which could have altered the result compared with raw, foamed PST. In an ambient of 25°C its power consumption averaged 25 watts, with air vents under half open, and nominal through put of fresh air.

 

When ambient dropped below 20°C, at night, consumption climbed to around 30 watts. When a layer of 40 eggs was put in the bottom to incubate, and the top removed 3 times daily to roll over (turn) the eggs, power consumption rose by an estimated 5 watts during the first week, and moved towards neutral in the 2nd week, but in the final week, attributed to the increasing body heat generated by the developing chickens, consumption moved down below the level applying when the eggs were initially set.

 

Weight: 0.00000 Kilograms
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